Drying apparatus for manufacturing pressure-sensitive adhesive tape

A drying apparatus (30) or manufacturing a pressure-sensitive adhesive tape in which a pressure-sensitive adhesive layer is formed on a strip-shaped long tape base material (T) is provided. The drying apparatus (30) dries coating agent (S) coated at least on one surface of the tape base material (T). The tape base material (T) that is transferred in a lengthwise direction thereof is spirally wound around a cylinder body (310a,310b) from one end side of the cylinder body to the other end side of the cylinder body in a slidable state. The cylinder body (310a,310b) is formed with a plurality of air holes (311a,311b) on an entire circumferential wall thereof, around which the tape base material (T) is spirally wound, the air holes (311a,311b) through which warm air or hot air flows from the inside of the cylinder body to the outside of the cylinder body.